Improvement in brewora ale



C; CLIFFORD.

Fermenting Vat.

@uiten taies s'twt fifle.

-CARLETON CLIFFORD, OF ADAMS, NEW YORK, ASSIGNOR TO' HIMSELF, A. W'. LAKE, AND T. P. SA'UNDERS, OF THE SAME PLAGE.

Letters Patent No. 63,994, dated April 23, 1857;

IMPROVEMENT IN BREWING ALE.

TO. ALL WI-IOM IT MAY CONCERN:

Be it known that I, OARLETON CLIFFORD, of Adams. in the county -of Jefferson, andv State of New York,

`have invented a new and useful Improvement in Brewing Ale; and I do hereby declare the following to be a full and exact ,description of the same, reference being had to the accompanying drawingswhich are made part of this specification, and in which,- i Figure is avertical transverse section of a cask and its appurtenances, illustrating my invention.

Figure 2 is a vertical 'longitudinal section of the same; and Figure 3 isa detached view. Similar letters of reference indicatecorresponding parts in the several vigures. Underthe ordinary process of brewing ales, the ale after passing from, the coolers is put into caslrs, where itis allowed to stand for some days in order that the yeast and impurities may be thrown off and separat-edI from the ale by slow fermentation. These casks have heretofore consisted simply of vessels open at top so as to allow the yeast to ow out over the sides as it is heared up by fermentation; and hence the ale while under this treatment is subjected to waste and injurious exposure to the atmosphere, and a fresh quantity of al'e has to be supplied-occasionally to keep the casks well filled.

The object of my invention is to overcome the above-named objections, and to this end it consists in making the cash close and tight, and inserting into its top a tube, which discharges the yeast into an elevated trough in which the good ale discharged with the yeast is allowed to sett-le, and from which said ale is :returned to the cask by a conducting tube as hereinafter explained.

My improvement also embraces a novel method of applying cold water for the purpose of regulating toc temperature. and preventing undue fermentation of the ale.

In order that other skilled in the art to which my invention appertains may be enabled to fully understand andvuse the same, I will proceed to vdescribe it indetail.

In the drawing, A is a close cask mounted in a suitable frame, which may also serve to sustain the elevated metallic box or trough B, which is set within thc water-box B. C is a bent-tube leading from the cask A, and

projecting upward therefrom, and terminating at a point above the trough B, into which it discharges the .yeast and im urities thrown off or u ward from the ale in the cash. VThe f reater s cciic ravit of the ood aleV P P P Y g which is discharged into the trough B with the yeast, etc., causes it to settle to the bottom of said trough, in close contact with which is the mouth of the tube D which conveys the good ale bock to the cask. The yeast may be removed from the trough B as often as required. A water space, c, surrounds the bottom and sides of the trough B, the water being. introduced through the opening c', iig. I, and having the effect to cool the contents of trough B and 'cause the good ale to settle therein. E isa pipe which conducts the water from the space c to the tube or cylinder'F, which is xed.. centrally within the cask A, as represented. The tube F is divided longitudinally into two chambers The water is discharged from pipe E into chamborf, and after traversing the length of the latter is lod into'chnmber ff, which returns the water to the ingress end of the cylinder and discharges it through pipe G int-o gutter I-I.

This method of applying water-las a cooling medium willeifectually prevent undue fermentation, and enables me to continue the brewing process during the warm months, in which the business has heretofore been suspended to a great extent. l v i The use of the apparatus is not confined to `the treatment of ale, 'as it may be employed for all liquids which have to undergo fermentation. It is evident that'inodiiications of construction and arrangement may bc effected without changing the essential principles of my invention. i

Having thus described my invention, the following is what I claim as new herein, and desire to secure by Letters Patent:

1. I claim the close cask or'tank A, provided with the discharge tube C or its eduivalent, and employed to contain alc or other liquor while undergoing fermentation, substantially-as and for the purpose specified.

2. I claim the combination, with the above, of the elevated receiving trough or box Rand return tube D, arrangedsubstantially as and for the purpose specided.

3. I claim the water-chamber c, in combination with the receiving trough B, substantially as described.

, 4. I claim the combinatioliof the cask A, tubes C D, trough B, box B', pipe or tube E, and water-cylinder F, all arranged substantially as and for the purpose specified.

The above specification of my invention signed by me this day of 1867.

CARLETON CLIFFORD.

v Witnesses R. RIPLEY, H. F. Ovna'ron. 

